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Mathematics · Ratio and Proportion

Proportion Playground

Adjust the two sides and see when their ratios match. Choose a mode to begin.

M Mathematics

P

Choose what to do

Start with a mode

Explore proportional relationships, or predict whether two ratios are equal.

Compare both sides

Learning scene

Change a count and watch both ratios.

Necklace

Left

3 : 2

VS

✓ Equal

Right

6 : 4

Relationship Left 3 : 2 · Right 6 : 4

Observation Both sides simplify to 3 : 2, so the ratios are equal.

Explore

Controls

Left necklace

Right necklace

Change any count with the plus and minus buttons or the arrow keys.

P Proportion Playground

Simulation menu

Simulation tools

Keyboard help

Use Tab to move between controls, then use the keys below.

TabShift + Tab

Move to the next or previous control.

EnterSpace

Press a focused button.

←→↑↓

Change a focused count by one.

12

Open the Explore or Predict mode.

M

Return to the mode selection screen.

R

Reset the active mode.

Esc

Close a menu or dialog, or leave full screen.

Pandai Simulation

Proportion Playground

Version 0.5.1

A Pandai Mathematics simulation for exploring ratio and proportion across four everyday contexts.

Compare two ratios in the Explore mode, then test your thinking in the Predict mode.

Choose a simulation mode to begin.

Simulation support

Report an Issue

Tell us what went wrong so the simulation can be improved.

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Simulation not working

Incorrect behaviour/result

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